User blog comment:DarkSlayer 3/Fake DMC2 sequel/@comment-3060460-20130802012344/@comment-775152-20130808031927

That's where my theory that DMC2 Dante IS Vergil comes in! There's clearly an event that happens between DMC4 and DMC2 where Vergil and Dante swap places, but people don't realize it, and Vergil for some reasons (invent your own if you don't like mine) plays along.